Samsung Galaxy A91 vs Xiaomi 15 Ultra
The Samsung Galaxy A91 (2021) runs on the Qualcomm Snapdragon 855, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 51/100 (a 34-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 4500); the main camera is 48 MP vs 50 MP; the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 824,513); the Xiaomi 15 Ultra has NFC for contactless payments, the Samsung Galaxy A91 doesn't.
Profile comparison
Category scores
Samsung Galaxy A91
Xiaomi 15 Ultra
What makes Samsung Galaxy A91 better?
- Overall rating 51/100
What makes Xiaomi 15 Ultra better?
- Higher AnTuTu: 3030376 vs 824513
- Better Geekbench Single: 3050 vs 968
- Better Geekbench Multi: 10200 vs 2731
- Bigger battery: 6000 vs 4500 mAh
- Faster charging: 90W vs 45W
- Better main camera: 50MP vs 48MP
- Higher performance (92/100 vs 54/100)
- Better camera (87/100 vs 41/100)
- Longer battery life (80/100 vs 38/100)
- Better display (90/100 vs 81/100)
Comparison verdict
Comparing the Samsung Galaxy A91 vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 34 points higher (85/100 vs 51/100). In the "performance" category, the Xiaomi 15 Ultra leads (92/100 vs 54/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 41/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 38/100). In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy A91 (92/100 vs 54/100). In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 81/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy A91 (87/100 vs 41/100). In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy A91 (80/100 vs 38/100).
Specs comparison
| Specification | Samsung Galaxy A91 | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 855 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 824513 | 3030376 | |
| Geekbench Single | 968 | 3050 | |
| Geekbench Multi | 2731 | 10200 | |
| Display | 6.7" Super AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 1080x2400 | 3200x1440 | |
| Refresh rate | — | 120 Hz | |
| Battery | 4500 mAh | 6000 mAh | |
| Charging | 45W | 90W | |
| Wireless charging | 0W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 12 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 8GB | 16GB | |
| Storage | 128GB | 256GB / 512GB / 1TB | |
| OS | Android 10, One UI | Android 15 / HyperOS 2 | |
| Brightness (peak) | — | 3200 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | — | 161.3×75.3×9.4 mm | |
| Weight | — | 225 g | |
| Launch price | — | $999 |
Camera comparison
Samsung Galaxy A91
- Main: 48MP f/2.0
- Ultrawide: 12MP
- Front: 32MP
Xiaomi 15 Ultra
- Main: 50MP f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Samsung Galaxy A91
- 6.7" Super AMOLED
- Resolution: 1080x2400
- Refresh rate: —
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Battery and charging
Samsung Galaxy A91
- 4500 mAh
- Wired: 45W
- No wireless charging
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
Overall performance score
We compared Samsung Galaxy A91 and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads Samsung Galaxy A91 by 72.8% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Samsung Galaxy A91
Price unknownDetailed category analysis
performance
In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy A91 (92/100 vs 54/100).
display
In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 81/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy A91 (87/100 vs 41/100).
battery
In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy A91 (80/100 vs 38/100).
Frequently asked questions
Which is better: the Samsung Galaxy A91 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy A91 by 34 points (85/100 vs 51/100).
What is the rating of the Samsung Galaxy A91 and the Xiaomi 15 Ultra?
The Samsung Galaxy A91 has a MobileRank rating of 51/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Samsung Galaxy A91 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 41/100).
Which is more powerful: the Samsung Galaxy A91 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 54/100).
Should you choose the Samsung Galaxy A91 over the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.